CA2200922C - Empty shell collector for fire arm - Google Patents

Empty shell collector for fire arm Download PDF

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Publication number
CA2200922C
CA2200922C CA002200922A CA2200922A CA2200922C CA 2200922 C CA2200922 C CA 2200922C CA 002200922 A CA002200922 A CA 002200922A CA 2200922 A CA2200922 A CA 2200922A CA 2200922 C CA2200922 C CA 2200922C
Authority
CA
Canada
Prior art keywords
conduit
firearm
cocking
breech block
ejection port
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CA002200922A
Other languages
French (fr)
Other versions
CA2200922A1 (en
Inventor
Robert Blanchet
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Minister of National Defence of Canada
Original Assignee
Minister of National Defence of Canada
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Minister of National Defence of Canada filed Critical Minister of National Defence of Canada
Priority to CA002200922A priority Critical patent/CA2200922C/en
Priority to US09/037,427 priority patent/US5934002A/en
Publication of CA2200922A1 publication Critical patent/CA2200922A1/en
Application granted granted Critical
Publication of CA2200922C publication Critical patent/CA2200922C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41WEAPONS
    • F41AFUNCTIONAL FEATURES OR DETAILS COMMON TO BOTH SMALLARMS AND ORDNANCE, e.g. CANNONS; MOUNTINGS FOR SMALLARMS OR ORDNANCE
    • F41A9/00Feeding or loading of ammunition; Magazines; Guiding means for the extracting of cartridges
    • F41A9/60Empty-cartridge-case or belt-link collectors or catchers

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Toys (AREA)
  • Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)

Abstract

A device for receiving and collecting spent shells ejected from a firearm having an spent shell ejection port. The invention comprises a hollow conduit which is shaped analogous to and surrounding the natural ejection path of the shell casings when mounted at the ejection port of the firearm by fastening clips. The ejected empty shells are collected in a receiving container attached to a flexible tubing which is attached to the conduit. An extension device for the cocking handle of the firearm may be required which improves handling of the weapon when the spent shell collector is installed.

Description

FIELD OF THE INVENTION
The invention described herein relates generally to a device for attachment to an automatic and semi-automatic firearm for receiving and collecting spent shells ejected from the firearm.
BACKGROUND OF THE INVENTION
The automatic and semi-automatic rifles such as M16 and AR15 made by Colt Company in the U.S. and their Canadian modifications such as C9 and C7 rifles have an ejection port adjacent to the loading system for ejecting spent shell casings after each firing.
The M16 and C9 rifles are used aboard helicopters and ships. The ejection and spill of the empty shells on to the floor of the aircraft and ship can create hazards, for example the empty shells could get ingested into the aircraft engine. This situation is referred to in flight safety as Foreign Object Damage (FOD).
To resolve the spill-out problems, several shell catchers available in the market were considered and tested on the C9 rifle, but none of them were satisfactory. The problems encountered in using the shell catchers related to the restriction in the handling of the weapon itself, incompatibility of types of attachments, size, weight, and most important, improper flow of the empty shells and blockage of the system.
In one of these devices described in U.S. Patent No.
5,389,439 the empty shell casing is attached to a support plate or, a latching bracket which fits against one side of the loading handle with a locking mechanism. The empty shell catcher is then fixed in the position adjacent to the discharge port of the firearm. In this device, the empty shells collected in the shell catcher are emptied by detachment of the container from its support.
In another device of a different type the spent shell collector consists of a bag with a bottom opening which is closed by a snap fastener. The bag is attached to the firearm with a bracket which covers the empty shell ejection port.
One major disadvantages of the prior art systems is that, the integrity of the natural ejection pathway of the shells is not considered. The ejected spent shells are forced through a pathway into the empty shell container. As a result clogging of the pathway can occur. Another disadvantage is that the mounting bracket of these systems interfere with the operation of the cocking handle in C9 and C7 rifles.
SUMMARY OF THE INVENTION
It is the object of the present invention to provide a spent shell collector for firearms and in particular the M16 and C9 types which can be conveniently mounted at the ejection port for empty shells, eliminating potential hazards associated with the ejection of the empty shells.
- 2~~0~22 An empty shell collector according to one embodiment of the present invention comprises: a hollow conduit for mounting at an ejection port for spent shells which is shaped analogous to and surrounding the natural ejection path of the shell casings when mounted at the spent shell ejection port of the firearm with an input opening of the conduit surrounding the ejection port; and, a receiving container for holding the shell casings coupled to an output of the conduit.
In one embodiment, the receiving container is coupled to the conduit with a flexible corrugated tubing to accommodate the passage of the empty shells to the receiving container. In another embodiment of the invention, the conduit is mounted on the firearm with mounting clips. In a further embodiment of the invention, The conduit has perforations of small diameters to allow only the escape of smoke and heat.
With the shell collector mounted on a firearm such as the M16 and C9 rifles, an extension device may be required for the cocking handle of the rifle since the ejection port area is kept covered. This extension device for the cocking handle is made larger than the original to facilitate handling the firearm with gloves, in cold environments.
This extension device for the handle also provides for reduced length of pull which facilitates firing the weapon from the shoulder.
DESCRIPTION OF THE DRAWINGS
The invention will now be described with reference to the accompanying drawings.
Figure 1 illustrates the installed conduit with a flexible tubing coupling the receiving container to the conduit, according to one embodiment of the invention.
Figure 2 illustrates the top view of a metal conduit that forms part of a shell collector.
Figure 3 illustrates the side view of the metal conduit.
Figure 4 illustrates the extension mechanism for the cocking handle, installed, without the shell collector.
Figure 5 illustrates a top view of the extension mechanism.
Figure 6 illustrates a side view of the extension mechanism.
DESCRIPTION OF THE PREFERRED EMBODIMENT
The C9 rifle With its normal configuration and design, ejects the expended shells and retaining clips on the ground. This may present no hazard when operating the rifle on the ground.
However, when the rifle is used on board of a military helicopter the ejected shells and clips could create hazardous conditions;
for example, if they are ingested into the helicopter engine or, projected at air crew.
~20~922 Various spent shell collectors available in the market were tried and found to be not satisfactory. The problems associated with using these prior art shell collectors were restriction of the handling of the weapon itself, incompatibility of types of attachments, size, weight, and most important, improper flow of the spent shells resulting in blockage of the system.
The system of this invention as shown in Fig. 1 is designed such that: an inlet 2 of a conduit 1 covers the ejection port of a C9 rifle. The conduit has a shape conforming to and surrounding the natural ejection path of spent shells when they are ejected from the rifle. The conduit 1 is installed on the rifle preferably using ammunition box mounting clips 4.
The surface of the conduit has perforations 5 of small size to allow only heat and smoke to escape, and air to cool down the ejection port area. The cylindrical end of the conduit 1 is connected to a corrugated flexible tubing 3, using a hose clamp 6.
The other end of the flexible tubing is connected to a spent shell recovery container 8. The spent shell recovery container may be in various forms preferably a soft walled bag connected to the corrugated tubing 3 by a hose clamp 6, but it could also be a solid walled container. This whole spent shell collection system is lightweight and easily installed.
Even though the conduit is quickly removable, its removal would be inappropriate in case of a jamming problem during firing.
The solution was found by notching the conduit, as shown in Fig. 3 2~Q4~~~
at 10, and adding an extension to the cocking handle 51 as shown in Fig. 4 to 6 to allow proper handling of the firearm while maintaining the ejection port area covered at all times. The extended cocking handle shown in Fig. 5 at 51 is also made larger in size to facilitate its handling while wearing gloves in cold environments. By extending the cocking handle to the rear, the overall length of pull is being reduced which improves the firing of the weapon from the shoulder, a problem well known to military, infantry personnel.
The advantage of this invention, over the prior art, consists in using the natural ejection path of the spent shells to design a conduit of adequate size and shape to enable the escape of the spent shells and allow a free flow through a flexible tubing into the shell recovery container. This design is a unique solution to existing problems:
o it allows the spent shells to follow their natural ejection path into the recovery bag;
o the surface perforation of the conduit, an important feature, allows dissipation of heat and smoke and allows air cooling of the firearm;
o the conduit may be constructed and moulded from high temperature resistant polymer or from a metal that is strong and matches the colour of the firearm;
o the conduit is fastened to the firearm with clips instead of being screwed on the firearm;
o for the purpose of emptying the receiving container, only the receiving container need to be removed; and, o the new extended cocking handle improves the length of pull and the grip and no alterations are done to the weapon for its installation.
Various modifications may be made to the preferred embodiments without departing from the spirit and scope of the invention as defined in the appended claims.

Claims (11)

THE EMBODIMENTS OF THE INVENTION IN WHICH AN EXCLUSIVE PROPERTY OR
PRIVILEGE IS CLAIMED ARE DEFINED AS FOLLOWS:
1. A collection system for receiving and collecting spent shell casings from a firearm wherein the firearm has a breech block for receiving and firing cartridges that include a shell casing, and the breech block has an ejection port for discharging spent shell casings; said collection system comprising: a hollow conduit, which has an inlet and an outlet, configured to correspond in curvature to trajectory of shell casings ejected from the firearm and surround the path of trajectory of shell casings; and, a collector means being coupled to the outlet of the conduit for receiving and holding the spent shell casings which pass through the conduit.
2. A device as defined in claim 1, wherein the conduit is adapted to be removably attached to said breech block so that its inlet is positioned to surround the ejection port when the conduit is attached to the breech block.
3. A device as defined in claim 1, wherein the conduit is removably attached on the breech block of the firearm with mounting clips.
4. A device as defined in claim 2, wherein the conduit is removably attached on the breech block of the firearm with mounting clips.
5. A device as defined in claim 1, wherein the surface of the conduit has small perforations to allow only the escape of smoke and heat.
6. A device as defined in claim 2, wherein the surface of the conduit has small perforations to allow only the escape of smoke and heat.
7. A device as defined in claim 3, wherein the surface of the conduit has small perforations to allow only the escape of smoke and heat.
8. A firearm with a breech block having a cocking mechanism, with an extended cocking handle attached to the said cocking mechanism to permit cocking the firearm from outside of the conduit, when the conduit described in claim 1 is installed over the ejection port for the spent shell casings, wherein an edge of a side surface of the conduit adjacent the breech block and facing the cocking handle is notched, which notch is of a size to allow for proper handling of the cocking mechanism.
9. A firearm with a breech block having a cocking mechanism, with an extended cocking handle attached to the said cocking mechanism to permit cocking the firearm from outside of the conduit, when the conduit described in claim 2 is installed over the ejection port for the spent shell casings, wherein an edge of a side surface of the conduit adjacent the breech block and facing the cocking handle is notched, which notch is of a size to allow for proper handling of the cocking mechanism.
10. A firearm with a breech block having a cocking mechanism, with an extended cocking handle attached to the said cocking mechanism to permit cocking the firearm from outside of the conduit, when the conduit described in claim 3 is installed over the ejection port for the spent shell casings, wherein an edge of a side surface of the conduit adjacent the breech block and facing the cocking handle is notched, which notch is of a size to allow for proper handling of the cocking mechanism.
11. A firearm with a breech block having a cocking mechanism, with an extended cocking handle attached to the said cocking mechanism to permit cocking the firearm from outside of the conduit, when the conduit described in claim 4 is installed over the ejection port for the spent shell casings, wherein an edge of a side surface of the conduit adjacent the breech block and facing the cocking handle is notched, which notch is of a size to allow for proper handling of the cocking mechanism.
CA002200922A 1997-03-25 1997-03-25 Empty shell collector for fire arm Expired - Fee Related CA2200922C (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CA002200922A CA2200922C (en) 1997-03-25 1997-03-25 Empty shell collector for fire arm
US09/037,427 US5934002A (en) 1997-03-25 1998-03-10 Empty shell collector for fire arm

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA002200922A CA2200922C (en) 1997-03-25 1997-03-25 Empty shell collector for fire arm

Publications (2)

Publication Number Publication Date
CA2200922A1 CA2200922A1 (en) 1998-09-25
CA2200922C true CA2200922C (en) 2004-07-13

Family

ID=4160245

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002200922A Expired - Fee Related CA2200922C (en) 1997-03-25 1997-03-25 Empty shell collector for fire arm

Country Status (2)

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US (1) US5934002A (en)
CA (1) CA2200922C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009051064A1 (en) 2009-10-28 2011-05-05 Rheinmetall Landsysteme Gmbh Catching or collecting device for ammunition sleeves and / or connectors in particular

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6470618B1 (en) * 2002-02-07 2002-10-29 David A. White Cartridge shell casing collector and method therefor
US6722253B2 (en) * 2002-05-10 2004-04-20 David A. Johnson Extended lever for a firearm
US6836991B1 (en) * 2003-10-01 2005-01-04 Thomas W. Saur System and method for a cartridge casing catcher
US7536821B1 (en) * 2003-10-01 2009-05-26 The United States Of America As Represented By The Secretary Of The Army Cartridge casing catcher with reduced firearm ejection port flash and noise
US7043863B2 (en) * 2003-10-01 2006-05-16 Saur Thomas W Multi-position spent cartridge casing catcher
US7469496B1 (en) 2006-09-19 2008-12-30 Kel-Tec Cnc Industries, Inc. Dual pivoting extractors
US8408113B2 (en) * 2009-11-06 2013-04-02 John W. Ledbetter, III Machine gun spent brass catch device
JP2012067960A (en) * 2010-09-22 2012-04-05 Toshiba Denpa Products Kk Cartridge case recovering implement
JP6000163B2 (en) * 2013-02-25 2016-09-28 住友重機械工業株式会社 Recovery device
WO2015049399A1 (en) * 2013-10-02 2015-04-09 Juan José Soriano Azorin Case-receiving container
US9188405B2 (en) 2014-04-03 2015-11-17 Craig P. Hawley Ejection port dust gate for automatic weapons
US9360264B2 (en) * 2014-05-01 2016-06-07 Joseph Rosenthal Universal firearm mounted receiving apparatus for casings
US9664468B1 (en) 2016-06-15 2017-05-30 Darrin S. Johnson Control of ejected firearm shells
USD787626S1 (en) 2016-06-15 2017-05-23 Darrin S. Johnson AR-15 cartridge deflector
US10545004B1 (en) * 2019-01-16 2020-01-28 Rodney Forbes Bullet casing capturing assembly
US11137225B1 (en) 2020-09-03 2021-10-05 Magwell Mounts, LLC Firearm shell casing catching system

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US663262A (en) * 1900-05-08 1900-12-04 Charles Henry Dieterich Receiver for discharged shells.
US2866289A (en) * 1955-07-19 1958-12-30 Leslie L Wilcox Unloading attachment for rifles
US3153296A (en) * 1962-10-10 1964-10-20 Gerald A Hofstetter Gun unloaders
US4028834A (en) * 1976-02-26 1977-06-14 Dobson Allan E Spent cartridge collector
AU506435B2 (en) * 1976-12-03 1980-01-03 E. E. F Kratzer Spent shell container or collector
IL61062A (en) * 1979-09-27 1985-05-31 Ishizuka Hiroshi Apparatus for electrolytic production of magnesium metal from its chloride
US4594803A (en) * 1985-01-28 1986-06-17 Muncy Floyd B Spent shell receiver
US4715141A (en) * 1986-01-06 1987-12-29 Kohnke William M Spent cartridge collector
CH675629A5 (en) * 1988-06-01 1990-10-15 Timour Bammate
US5138787A (en) * 1991-04-01 1992-08-18 Riddle Corporation Device for catching and holding rifle shell casings ejected from a rifle
CH686098A5 (en) * 1992-03-11 1995-12-29 Timour Bammate Device recovery cartridges of containers for automatic or semi-automatic weapon.
US5398439A (en) * 1993-07-26 1995-03-21 The United States Of America As Represented By The Secretary Of The Army Expended brass catcher

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009051064A1 (en) 2009-10-28 2011-05-05 Rheinmetall Landsysteme Gmbh Catching or collecting device for ammunition sleeves and / or connectors in particular
DE102009051064B4 (en) 2009-10-28 2022-09-22 Rheinmetall Landsysteme Gmbh weapon station

Also Published As

Publication number Publication date
US5934002A (en) 1999-08-10
CA2200922A1 (en) 1998-09-25

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Effective date: 20080325